drive87

RB5s' now up to 6600 miles and I'd like to give it an in-between oil and filter change myself,all the dealers want nearly 100 quid for this 1/2hr job,so I'll do it myself.Not a problem as I've already done one on this particular car before when I didn't think Clarkston Motors carried one out during a service.
The question is what oil,I used Mobil 0w-40 the last time, was that suitable ,whats best,synthetic,semi-synthetic,Mobil or Castrol.
£11 plus vat for a filter who thinks up these prices!!!!